The Biosphere 2 Experience | Self-Guided Tour | Oracle, Arizona

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Biosphere 2 is an amazing location dedicated to research and Earth sciences. Touring the facility feels surreal as there you walk from desert to ocean to rainforest. It's truly an out of this world experience!

▬▬ C A C T U S A T L A S . C O M ▬▬

Located in Oracle about 26 miles north of Tucson, Arizona, Biosphere 2 was completed in 1991 to prove the possibility of supporting life in outer space through closed ecological systems replicating Earth’s biosphere.

Two closed-system experiments took place over time, however, did not prove to be as successful as first thought. With the buildings in jeopardy of demolition, the University of Arizona took full ownership of the property and today it is open to the public with occasional research projects and science camps still taking place.

Throughout the tour, one will walk through an orchard, a tropical desert as well as marsh, thorn scrub, savannah, ocean and rainforest areas.

Not included in the self-guided tour are the lungs and the ocean viewing gallery. If you get a chance in the future to visit these exhibits, they are fascinating and definitely worth your time!

Despite the name, the two lungs at Biosphere 2 serve no purpose in exchanging air from within or outside the facilities. Two large concrete slabs are suspended from each ceiling attached to a rubber seal. As temperatures vary from day to night within the desert, the pressure inside the buildings fluctuate. To prevent the need to exchange air outside, the slabs will rise and fall to maintain an even air pressure within.

The Ocean at Biosphere 2 is a 700,000 gallon tank utilized for oceanic research. When originally built, the tank contained a coral reef and dozens of fish species, however, much of that died off after coral acidification experiments were conducted by Columbia University. What resulted is much like what our own oceans could look like with rising water temperatures. Today the University of Arizona has plans to replicate the Sea of Cortés while still continuing research on coral reefs.

▬▬ L O C A T I O N I N F O ▬▬

▬▬ T I M E S T A M P S ▬▬
00:00 Intro
01:02 Biosphere Information
01:34 Lookouts and Exterior Walking Path
03:55 Lungs Information
04:31 Orchard
06:25 Desert
07:50 Thorn Scrub
08:30 Ocean
09:36 Savannah
09:51 Rainforest

▬▬ L I N K S ▬▬
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Welcome to the Cactus Atlas! Join us as we visit all sorts of locations across the American Southwest. We tour both natural and man-made attractions - National Parks as well as theme parks.

Our base of operations is in the Phoenix, AZ area. We do a lot of hiking and day trips as well as campground reviews, and hope that we will be a great resource if you are planning a trip to the American Southwest. We also hope to delight you with our exciting adventures!
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Great Virtual Tour! 👍👍😊😊 Wonderful! Amazing! Very Interesting!

WalkAround_Official
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What a fantastic place. So great the university took it over so they can offer this experience. You’re right, it’s an optimistic futuristic vision.

TravelswithVandSteve
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HAHA, fun and educational video! Have always been interested in the Biosphere projects. Thanks for sharing!

AFKDays
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So wonderful that a unique place still exist. Botanical garden in St. Louis has rain forest exhibit that is hot and humid also. This is very reminiscent of this place. The lungs were really interesting on how they function and and you can understand why they were named lungs. Fascinating

doxielover
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I remember this and I remember the Pauly Shore movie!!😂😂 Great information! The method in which they maintain pressure control is really interesting!

SwiftyTravels
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Very cool I have always wanted to come here

KitschyTravels
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Such an interesting place - would love to get out here someday

ThePlacesWhereWeGo
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Hahaha, nice Biodome References. I would have sworn it was filmed there too. Oh well, still a really cool place.

PanhandleHopper
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Did you try any of the sticky purple punch :D

gstiles
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look yummy lemon nice place friend say hi from Thailand

luckyjanetravel
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Hey, the rain forest looks like my home state, Florida!

JohnSmith-efsp
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know what you mean. got the shivers walking out of kartchner caverns. awesome cave...but i remember the shivers the most.
hey...when you going to kartchner caverns?

owlenfamily
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People could live on Mars if they built a few biosphere there!😮

JasonJacobs
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